Add example for production deployment

prod/README.md

@@ -0,0 +1,76 @@
+# Example Production Deployment
+
+This is an example of a production deployment for the Feed Generator.
+
+## Architecture
+
+The production setup includes the following services:
+
+- **MongoDB**: Database for storing posts and feed data
+- **Consumer**: Service that consumes AT Protocol firehose data
+- **Feed Generator (AZ)**: Generates feeds for Azerbaijan-related content
+- **API**: REST API service for serving feeds
+- **Caddy**: Reverse proxy
+
+## Quick Start
+
+1. **Configure the environment**:
+   ```bash
+   make configure
+   ```
+   This will:
+   - Copy all example configuration files
+   - Prompt for MongoDB credentials
+   - Prompt for domain name and AT Protocol DID
+   - Update configuration files with your values
+
+2. **Start the services**:
+   ```bash
+   docker compose up -d
+   ```
+
+3. **Check service status**:
+   ```bash
+   docker compose ps
+   docker compose logs
+   ```
+
+## Configuration Files
+
+### Application Configuration
+- `config/app/.api.env` - API service configuration
+- `config/app/.consumer.env` - Consumer service configuration  
+- `config/app/.mongodb.env` - MongoDB connection settings
+- `config/app/feedgen/.az.env` - Azerbaijan feed generator settings
+
+### Infrastructure Configuration
+- `config/caddy/.env` - Caddy reverse proxy settings
+- `config/caddy/Caddyfile` - Caddy server configuration
+- `config/mongodb/.env` - MongoDB initialization settings
+
+## Environment Variables
+
+### API Service
+- `FEEDGEN_HOSTNAME` - Public hostname for the feed generator
+- `FEEDGEN_PUBLISHER_DID` - Your AT Protocol DID
+- `API_PORT` - Port for the API service (default: 8421)
+
+### Consumer Service
+- `POST_MAX_DATE` - Maximum age of posts to store (default: 720h/30 days)
+- `POST_COLLECTION_CUTOFF_CRON_DELAY` - Cleanup interval (default: 30m)
+- `POST_COLLECTION_CUTOFF_CRON_MAX_DOCUMENT` - Max documents before cleanup (default: 1M)
+
+### AZ Feed Generator
+- `FEED_AZ_GENERATER_CRON_DELAY` - Feed generation interval (default: 1m)
+- `FEED_AZ_COLLECTION_CUTOFF_CRON_DELAY` - Cleanup interval (default: 30m)
+- `FEED_AZ_COLLECTION_CUTOFF_CRON_MAX_DOCUMENT` - Max documents before cleanup (default: 500K)
+
+### MongoDB
+- `MONGODB_HOST` - MongoDB hostname (default: mongodb)
+- `MONGODB_PORT` - MongoDB port (default: 27017)
+- `MONGODB_USERNAME` - Database username
+- `MONGODB_PASSWORD` - Database password
+
+### Caddy
+- `DOMAIN` - Your domain name
+- `API_HOST` - Internal API service URL (default: http://api:8421)